function ask_cont; 
% function ask_cont; 
% Ask whether user wishes to continue this program or not 
% ii=0;
% while ii < 1;
%     answer = input('Press ENTER to continue ; 0 + ENTER to stop. Input: ');
%     if length(answer) < 2;
%         ii=1;
%     end
% end; 
% if isempty( answer); 
%     return 
% end 
% if answer == 0
%     disp(' '); 
%     disp('_____________________________________'); 
%     disp('You have chosen to STOP this program');  
%     error('You have chosen to STOP this program')
% end 
quer('c'); 